Hours before the happiest day of her life, Mandy Moore was dealt a devastating blow. She lost a special member of her family — her rescue cat, Madeline. Read on for all the details and to see her moving tribute.

Under a touching slideshow of pictures of the cat she wrote, “Sometimes life doesn’t consider that you have big plans underway. Sometimes the earth just falls right out beneath you. We lost our sweet Madeline very suddenly on Saturday evening and my heart is so utterly broken.”

Photo credit: MEGA

Photo credit: MEGA

She continued, “She had an enlarged heart (it had to be true because there wasn’t a sweeter, more affectionate cat in all the land), blood clots formed and sent her into heart failure. Completely out of the blue.”

Photo credit: INSTARImages

Photo credit: INSTARImages

The 34-year-old also admitted that she and new hubby Taylor Goldsmith were still working to process the huge loss. “We’re still in shock and processing the pain and grief of this loss but holding her in my arms, making sure she knew she was safe and loved as she took her last breaths will stay with me for the rest of my life.” she added.

As OK! readers know, the very next day Mandy got to take a break from mourning her feline friend. She and Taylor officially tied the knot during an “intimate backyard wedding” at their home Sunday evening.

Photo credit: MEGA

Photo credit: MEGA

What do you think about Mandy’s tribute to Madeline? Let us know in the comments.